NICAM Stereo Encoder MC44C404 NICAM Stereo Encoder industry's fir

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Document Number: MC44C404 Rev. 0.3, 11/2007
NICAM Stereo Encoder
MC44C404 NICAM Stereo Encoder industry's first single-chip CMOS implementation Near Instantaneous Companding Audio Multiplex (NICAM) stereo encoder. Intended set-top boxes, VCRs, players/recorders, game stations, other applications that required output high-quality stereo sound through single coaxial cable. Engineered process analog audio signals generate QPSK modulated signal compliance with standard. Designed output this signal Freescale modulator, which turn produces stereo encoded channel with NICAM stereo television receiver.
Features Supports system standards NICAM digital audio processing encodes transports stereo signals Integrated converter input converter output circuitry Extended frequency response (below Simple passive interface MC44BS373/4 modulators power consumption typically RoHS compliant
MC44C404
NICAM STEREO ENCODER
SUFFIX 32-LEAD TQFN PACKAGE CASE 1457-01
Benefits Preservation original surround sound fidelity Multi standard system component count, small board size significantly overall system cost manual alignment filters phase controls Reference Documentation NICAM 728: Transmission two-channel digital sound with terrestrial television systems V1.2.1)
ORDERING INFORMATION
Device MC44C404EP MC44C404EPR2 Temp. Range Package RoHS 32TQFN
+70°C
Tape Reel
XTALOUT DVSS
XTALIN
MC44C404
AUDIO CHANNEL AUDIO CHANNEL NICAM DIGITAL AUDIO PROCESSOR QPSK AUDIO VINB VAGO VREFP VREFM XTAL CLOCK GENERATOR CLOCK VAGO ADCVDD ADCVSS
OVDD DVSS CLK4MHZ DVDD SYS_I DVSS DVSS
MC44C404
MC44C404 32TQFN Package
This document contains information preproduction product. Specifications information herein subject change without notice.
Freescale Semiconductor, Inc., 2007. rights reserved.
VINA
Functional Block Diagram
VAGO OVDD
QPSK OVSS
MC44C404
XTALIN XTALOUT Oscillator Clock Generator CLK4MHZ
ADCVDD VINA
OVDD QPSK
VAGO
VREFP VAGO VREFM
V-REF
DVSS VINB VAGO
OVDD DVSS
ADCVSS
DVDD DVSS
SYS_I NICAM Audio Processor
DVSS OVSS
Figure MC44C404 Block Diagram
MC44C404 Freescale Semiconductor
DESCRIPTION
XTALOUT DVSS XTALIN
ORIENTATION MARK
OVDD DVSS CLK4MHZ DVDD SYS_SEL DVSS DVSS
VINB VAGO VREFP VREFM VAGO ADCVDD ADCVSS VAGO OVDD QPSK OVSS VINA
MC44C404
Figure MC44C404 32-Lead TQFN Package Table Descriptions (Listed Function)
Signal Name Analog VINA VREFP VAGO VREFM VINB Digital Control input reserve sound switching flag. analog signal carrying same program digital signal. analog sound signal carrying same program digital signal. Output system format select. SYS_I output format System SYS_I output format System QPSK NICAM audio output connection Control inputs Table Application Control Bits setting these application control bits. channel input voltage ref. bypass plus Analog virtual ground voltage ref. bypass minus channel input Description
SYS_I
QPSK Clocks XTALIN XTALOUT CLK4MHZ Power Supply ADCVDD ADCVSS DVDD DVSS OVSS OVDD
Crystal oscillator input Crystal oscillator output clock output Audio/Video modulator
analog supply voltage, analog ground Digital logic supply voltage, Digital logic/I/O ground supply voltage,
MC44C404 Freescale Semiconductor
Table Application Control Bits
Contents 704-Bit Sound/Data Blocks Stereo signal independent mono sound signals mono signal Kbits/sec data channel Kbits/sec data channel Reserved
ELECTRICAL SPECIFICATIONS
Table Absolute Maximum Ratings Absolute maximum continuous ratings those maximum values beyond which damage device occur. Exposure these conditions conditions beyond those indicated adversely affect device reliability. Functional operation absolutemaximum-rated conditions implied.
Characteristic Digital Logic Supply Voltage Digital Output Supply Voltage Supply Voltage Input Voltage Storage Temperature Range Symbol DVDD OVDD ADCVDD Tstg -0.3 -0.3 -0.3 -0.3 +2.0 +4.0 +4.0 xVDD +150 Units
Table General Specifications
Characteristic Protection (Machine Model) Protection (Human Body Model) Latch-Up Immunity Symbol 2000 Units
Table Recommended Operating Conditions
Characteristic Digital Logic Supply Voltage Digital Output Supply Voltage Supply Voltage Channel Input Level Ambient Temperature Symbol DVDD OVDD ADCVDD VINA, VINB 1.62 2.97 2.97 1.98 3.63 3.63 Units
Table Characteristics
Characteristic(1) Digital Logic Supply Current Digital Output Supply Current Supply Current Voltage Ref. Bypass Plus Voltage Ref. Bypass Minus Voltage Ref. Ground CLK4MHZ, Clock Output CLK4MHZ, Clock Output High Symbol IDVDD IOVDD IADCVDD VREFP VREFM VAGO 2.97 3.63 Units
MC44C404 Freescale Semiconductor
Unless other wise noted: DVDD 0.18 Vdc, OVDD ADCVDD 0.33 Vdc, Vdc, 70°C
Table Characteristics (Test setup shown Figure MC44C404 Typical Application Circuit Systems)
Characteristic(1) Input Impedance (A/B Input) QPSK Audio Output QPSK Output Level Signal Noise Ratio(2),(3) Total Harmonic Distortion(2),(3) Level(2) Symbol 0.85 14500 Units
Bandwidth
Unless other wise noted: DVDD 0.18 Vdc, OVDD ADCVDD 0.33 Vdc, Vdc, 70°C Test conditions, mono, Measured 13.5 bandwidth
SYSTEM APPLICATION NOTES
DESIGN CONSIDERATIONS
When developing application using MC44C404 NICAM Stereo Encoder, user significantly improve performance following suggestions below. There must notch video because video spectra that fall into audio range will severely impact audio performance. band pass filter required QPSK output. Modulator Interface clock drive MC44BS373 must filtered level correctly. This achieved using Pass Filter (LPF), shown LPF1 Figure MC44C404 Typical Application Circuit Systems. application control bits Table Descriptions (Listed Function) Table Application Control Bits
MC44C404 Freescale Semiconductor
DVDD
ADCVDD
VINB VAGO VAGO VAGO VREFP VREFM
TVOVCC
QPSK BPF1
AUXIN RFOUT
MC44C404
CLK4MHZ LPF1
MC44BS373CAFC Modulator TVOUT XTAL
VCCD
VCCA
Input
Input
VINA
OVDD
OVDD
.022
PLLFLT
.047
1000 SPFLT
SYS_I
SYS_I XTALOUT ADCVSS DVSS OVSS DVSS DVSS DVSS XTALIN Video Notch
VIDEO
SIGNAL STANDARD SYS_I SYSTEMS SYS_I SYSTEM
Analog Ground
Digital Ground
CVBS
BPF1
BPF1 SYS_I
LPF1
1500
Figure MC44C404 Typical Application Circuit Systems
MC44C404 Freescale Semiconductor
PACKAGE DATA
MC44C404 Freescale Semiconductor
MC44C404 Freescale Semiconductor
MC44C404 Freescale Semiconductor
MC44C404 Freescale Semiconductor
Reach
Home Page: www.freescale.com Support: USA/Europe Locations Listed: Freescale Semiconductor, Inc. Technical Information Center, EL516 2100 East Elliot Road Tempe, Arizona 85284 +1-800-521-6274 +1-480-768-2130 www.freescale.com/support Europe, Middle East, Africa: Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 81829 Muenchen, Germany 1296 (English) 52200080 (English) 92103 (German) (French) www.freescale.com/support Japan: Freescale Semiconductor Japan Ltd. Headquarters ARCO Tower 1-8-1, Shimo-Meguro, Meguro-ku, Tokyo 153-0064 Japan 0120 191014 5437 9125 support.japan@freescale.com Asia/Pacific: Freescale Semiconductor Hong Kong Ltd. Technical Information Center King Street Industrial Estate N.T., Hong Kong +800 2666 8080 support.asia@freescale.com Literature Requests Only: Freescale Semiconductor Literature Distribution Center P.O. 5405 Denver, Colorado 80217 1-800-441-2447 303-675-2140 Fax: 303-675-2150
Information this document provided solely enable system software implementers Freescale Semiconductor products. There express implied copyright licenses granted hereunder design fabricate integrated circuits integrated circuits based information this document. Freescale Semiconductor reserves right make changes without further notice products herein. Freescale Semiconductor makes warranty, representation guarantee regarding suitability products particular purpose, does Freescale Semiconductor assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters that provided Freescale Semiconductor data sheets and/or specifications vary different applications actual performance vary over time. operating parameters, including "Typicals", must validated each customer application customer's technical experts. Freescale Semiconductor does convey license under patent rights rights others. Freescale Semiconductor products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Freescale Semiconductor product could create situation where personal injury death occur. Should Buyer purchase Freescale Semiconductor products such unintended unauthorized application, Buyer shall indemnify hold Freescale Semiconductor officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Freescale Semiconductor negligent regarding design manufacture part. Freescaleand Freescale logo trademarks Freescale Semiconductor, Inc. other product service names property their respective owners. Freescale Semiconductor, Inc. 2007. rights reserved.
MC44C404 11/2007

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